Question

which of the following are pure substances? ice, milk, iron, hydrochloric acid, Mercury, brick and water.

Answer 1

I hope it will help you......


Ice, iron, calcium oxide and mercury are pure substances since they contain particles of only one kind of matter. In contrast, milk, hydrochloric acid (hydrogen chloride gas dissolved in water), brick and air cannot be called pure substances because they consists of particles of more than one kind of matter.

Answer 2

Following substance from the above mentioned list are pure substance :

$\sf\red{★Iron}$

$\sf\red{★Ice}$

$\sf\red{★Hydrochloric\:acid}$

$\sf\red{★Water}$

$\sf\red{★Mercury}$